NeilBrown fae8cc5ed0 md/raid10: fix handling of error on last working device in array. ... If we get a read error on the last working device in a RAID10 which contains the target block, then we don't fail the device (which is good) but we don't abort retries, which is wrong. We end up in an infinite loop retrying the read on the one device. This patch fixes the problem in two places: 1/ in raid10_end_read_request we don't even ask for a retry if this was the last usable device. This is efficient but a little racy and will sometimes retry when it should not. 2/ in handle_read_error we are careful to exclude any device from retry which we tried to mark as faulty (that might have failed if it was the last device). This is race-free but less efficient. Signed-off-by: NeilBrown <neilb@suse.de>		2012-02-14 11:10:10 +11:00
..
persistent-data	device-mapper: using EXPORT_SYBOL in dm-space-map-checker.c needs export.h	2011-11-07 10:29:10 -08:00
bitmap.c	md/bitmap: be more consistent when setting new bits in memory bitmap.	2011-12-23 10:17:51 +11:00
bitmap.h	md: remove typedefs: mddev_t -> struct mddev	2011-10-11 16:47:53 +11:00
dm-bio-record.h
dm-bufio.c	device-mapper: dm-bufio.c needs to include module.h	2011-11-07 10:29:10 -08:00
dm-bufio.h	dm: add bufio	2011-10-31 20:19:09 +00:00
dm-crypt.c	dm crypt: always disable discard_zeroes_data	2011-09-25 23:26:21 +01:00
dm-delay.c	dm: convert workqueues to alloc_ordered	2011-01-13 19:59:57 +00:00
dm-exception-store.c	md: Add module.h to all files using it implicitly	2011-10-31 19:31:18 -04:00
dm-exception-store.h	dm snapshot: test chunk size against both origin and snapshot	2010-08-12 04:13:51 +01:00
dm-flakey.c	dm: flakey fix corrupt_bio_byte error path	2011-09-25 23:26:15 +01:00
dm-io.c	dm io: flush cpu cache with vmapped io	2011-08-02 12:32:01 +01:00
dm-ioctl.c	dm table: add immutable feature	2011-10-31 20:19:04 +00:00
dm-kcopyd.c	dm kcopyd: add dm_kcopyd_zero to zero an area	2011-10-31 20:18:58 +00:00
dm-linear.c	dm: use dm_target_offset macro	2010-08-12 04:14:11 +01:00
dm-log-userspace-base.c	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
dm-log-userspace-transfer.c	netlink: kill eff_cap from struct netlink_skb_parms	2011-03-03 13:32:07 -08:00
dm-log-userspace-transfer.h	dm log: userspace add luid to distinguish between concurrent log instances	2009-09-04 20:40:34 +01:00
dm-log.c	dm: use vzalloc	2011-08-02 12:32:02 +01:00
dm-mpath.c	dm table: share target argument parsing functions	2011-08-02 12:32:04 +01:00
dm-mpath.h
dm-path-selector.c	md: Add module.h to all files using it implicitly	2011-10-31 19:31:18 -04:00
dm-path-selector.h	dm mpath: add start_io and nr_bytes to path selectors	2009-06-22 10:12:27 +01:00
dm-queue-length.c	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
dm-raid.c	Prevent DM RAID from loading bitmap twice.	2012-01-31 09:43:41 +11:00
dm-raid1.c	dm kcopyd: return client directly and not through a pointer	2011-05-29 13:03:13 +01:00
dm-region-hash.c	Fix common misspellings	2011-03-31 11:26:23 -03:00
dm-round-robin.c	md: Add module.h to all files using it implicitly	2011-10-31 19:31:18 -04:00
dm-service-time.c	md: Add module.h to all files using it implicitly	2011-10-31 19:31:18 -04:00
dm-snap-persistent.c	md: Add in export.h for files using EXPORT_SYMBOL	2011-10-31 19:31:19 -04:00
dm-snap-transient.c	md: Add in export.h for files using EXPORT_SYMBOL	2011-10-31 19:31:19 -04:00
dm-snap.c	dm snapshot: skip reading origin when overwriting complete chunk	2011-08-02 12:32:04 +01:00
dm-stripe.c	dm stripe: implement merge method	2011-03-24 13:54:35 +00:00
dm-sysfs.c	Driver core: Constify struct sysfs_ops in struct kobj_type	2010-03-07 17:04:49 -08:00
dm-table.c	dm table: add immutable feature	2011-10-31 20:19:04 +00:00
dm-target.c	dm: error return error for discards	2010-08-12 04:14:14 +01:00
dm-thin-metadata.c	dm: add thin provisioning target	2011-10-31 20:21:18 +00:00
dm-thin-metadata.h	dm: add thin provisioning target	2011-10-31 20:21:18 +00:00
dm-thin.c	dm: add thin provisioning target	2011-10-31 20:21:18 +00:00
dm-uevent.c	md: Add in export.h for files using EXPORT_SYMBOL	2011-10-31 19:31:19 -04:00
dm-uevent.h
dm-zero.c	dm: zero silently drop discards	2010-08-12 04:14:12 +01:00
dm.c	Merge branch 'for-3.2/core' of git://git.kernel.dk/linux-block	2011-11-04 17:06:58 -07:00
dm.h	dm table: add immutable feature	2011-10-31 20:19:04 +00:00
faulty.c	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
Kconfig	dm: add thin provisioning target	2011-10-31 20:21:18 +00:00
linear.c	md/linear: fix hot-add of devices to linear arrays.	2011-12-23 09:56:55 +11:00
linear.h	md/linear: typedef removal: linear_conf_t -> struct linear_conf	2011-10-11 16:48:54 +11:00
Makefile	dm: add thin provisioning target	2011-10-31 20:21:18 +00:00
md.c	md: two small fixes to handling interrupt resync.	2012-02-07 12:01:51 +11:00
md.h	md: create externally visible flags for supporting hot-replace.	2011-12-23 10:17:51 +11:00
multipath.c	md: change hot_remove_disk to take an rdev rather than a number.	2011-12-23 10:17:51 +11:00
multipath.h	md/multipath: typedef removal: multipath_conf_t -> struct mpconf	2011-10-11 16:48:57 +11:00
raid1.c	md/raid1: fix buglet in md_raid1_contested.	2012-02-13 14:24:05 +11:00
raid1.h	md/raid1: Allocate spare to store replacement devices and their bios.	2011-12-23 10:17:56 +11:00
raid5.c	md/raid5: Mark device want_replacement when we see a write error.	2011-12-23 10:17:54 +11:00
raid5.h	md/raid5: detect and handle replacements during recovery.	2011-12-23 10:17:53 +11:00
raid10.c	md/raid10: fix handling of error on last working device in array.	2012-02-14 11:10:10 +11:00
raid10.h	md/raid10: prepare data structures for handling replacement.	2011-12-23 10:17:54 +11:00
raid0.c	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
raid0.h	md/raid0: typedef removal: raid0_conf_t -> struct r0conf	2011-10-11 16:48:59 +11:00